EMK107B7683MA-T Equivalent & Substitute Parts

Part Overview

The EMK107B7683MA-T is a 0.068 µF ±20% 16V ceramic capacitor in X7R temperature coefficient, manufactured by Taiyo Yuden in 0603 (1608 Metric) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. The X7R temperature coefficient provides stable capacitance across the operating range of -55°C to 125°C, suitable for SMPS filtering applications. Substitute parts must maintain identical or superior electrical and mechanical specifications to ensure functional compatibility.

Key Parameters

Parameter	Value	Specification Basis
Capacitance	0.068 µF	Core electrical requirement
Voltage Rating	16V (minimum)	Circuit operating voltage
Tolerance	±20% (baseline)	Acceptable capacitance variation
Temperature Coefficient	X7R	Thermal stability requirement
Operating Temperature Range	-55°C to 125°C	Environmental operating limits
Package / Case	0603 (1608 Metric)	PCB footprint and mounting
Mounting Type	Surface Mount, MLCC	Assembly process compatibility
RoHS Status	ROHS3 Compliant	Environmental and regulatory compliance
Moisture Sensitivity Level	MSL 1 (Unlimited)	Storage and handling requirements

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter compatibility with the main part EMK107B7683MA-T:

Direct Substitutes maintain identical capacitance (0.068 µF), voltage rating (16V), tolerance (±20%), and temperature coefficient (X7R). These parts are functionally interchangeable without circuit modification:

C0603C683M4RAC7867 (KEMET)
KGM15AR71C683MM (KYOCERA AVX)
KGM15AR71C683MT (KYOCERA AVX)

Upgrade Substitutes provide enhanced electrical performance through improved tolerance (±5% or ±10%) or higher voltage ratings (25V or 50V) while maintaining the same capacitance value and X7R temperature coefficient. These parts are electrically compatible and offer superior performance margins:

C0603C683J3RAC7867 (KEMET, 0.068 µF ±5% 25V)
C0603C683J4RAC7867 (KEMET, 0.068 µF ±5% 16V)
C0603C683J5RAC7867 (KEMET, 0.068 µF ±5% 50V)
C0603C683K3RAC7867 (KEMET, 0.068 µF ±10% 25V)
C0603C683K4RAC7867 (KEMET, 0.068 µF ±10% 16V)
C0603C683K5RAC7867 (KEMET, 0.068 µF ±10% 50V)
C0603C683M3RAC7867 (KEMET, 0.068 µF ±20% 25V)

All substitute parts share identical package dimensions (0603 / 1608 Metric), surface mount MLCC mounting type, ROHS3 compliance, and MSL 1 rating.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temperature Coefficient	Package	Product Status	Inventory (Pcs)
EMK107B7683MA-T	Taiyo Yuden	0.068 µF	±20%	16V	X7R	0603	Obsolete	852
C0603C683M4RAC7867	KEMET	0.068 µF	±20%	16V	X7R	0603	Active	1019
KGM15AR71C683MM	KYOCERA AVX	0.068 µF	±20%	16V	X7R	0603	Active	800
KGM15AR71C683MT	KYOCERA AVX	0.068 µF	±20%	16V	X7R	0603	Active	1024
C0603C683J3RAC7867	KEMET	0.068 µF	±5%	25V	X7R	0603	Active	9228
C0603C683J4RAC7867	KEMET	0.068 µF	±5%	16V	X7R	0603	Active	7728
C0603C683J5RAC7867	KEMET	0.068 µF	±5%	50V	X7R	0603	Active	56369
C0603C683K3RAC7867	KEMET	0.068 µF	±10%	25V	X7R	0603	Active	67264
C0603C683K4RAC7867	KEMET	0.068 µF	±10%	16V	X7R	0603	Active	62242
C0603C683K5RAC7867	KEMET	0.068 µF	±10%	50V	X7R	0603	Active	85571
C0603C683M3RAC7867	KEMET	0.068 µF	±20%	25V	X7R	0603	Active	935

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Mitigation):

Select C0603C683M4RAC7867, KGM15AR71C683MM, or KGM15AR71C683MT for one-to-one substitution. All three parts are active products with identical electrical specifications (0.068 µF ±20% 16V X7R) and package dimensions. KEMET C0603C683M4RAC7867 offers the highest inventory availability (1019 pcs) and is ROHS3 compliant with REACH Unaffected status. KYOCERA AVX parts (KGM15AR71C683MM and KGM15AR71C683MT) provide alternative sourcing with comparable availability and full compliance certifications.

For Enhanced Performance (Tolerance Improvement):

C0603C683J4RAC7867 (KEMET, ±5% tolerance, 16V) or C0603C683K4RAC7867 (KEMET, ±10% tolerance, 16V) are suitable when tighter capacitance tolerance is required. Both maintain the 16V rating and offer superior tolerance specifications compared to the original ±20% part. Inventory availability is substantial (7728 pcs and 62242 pcs respectively).

For Voltage Margin Enhancement:

C0603C683J5RAC7867 (KEMET, ±5% tolerance, 50V) or C0603C683K5RAC7867 (KEMET, ±10% tolerance, 50V) provide increased voltage headroom for circuits operating near the 16V limit. These parts maintain identical capacitance and X7R temperature coefficient while offering 50V rating. Inventory levels are high (56369 pcs and 85571 pcs respectively).

All substitute parts are ROHS3 compliant, MSL 1 rated, and suitable for surface mount assembly in 0603 package footprints. Product status is active for all substitutes, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can C0603C683M4RAC7867 replace EMK107B7683MA-T directly without circuit modification?

A: Yes. C0603C683M4RAC7867 is a direct substitute with identical capacitance (0.068 µF), tolerance (±20%), voltage rating (16V), temperature coefficient (X7R), and package (0603). No circuit modification is required.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (C0603C683M4RAC7867, KGM15AR71C683MM, KGM15AR71C683MT) maintain all electrical parameters identical to the original part. Upgrade substitutes offer improved tolerance (±5% or ±10% instead of ±20%) or higher voltage ratings (25V or 50V instead of 16V) while maintaining the same capacitance value. Upgrade substitutes are electrically compatible and provide enhanced performance margins.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and suitable for applications requiring environmental and regulatory compliance.

Q: What is MSL 1 rating and why is it important?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life with no moisture baking requirement before soldering. All substitute parts carry MSL 1 rating, matching the original part's handling requirements and simplifying inventory management.

Q: Can I use a 25V or 50V rated capacitor in place of the 16V original part?

A: Yes. Higher voltage-rated capacitors are electrically compatible in circuits designed for lower voltages. Using C0603C683K5RAC7867 (50V) or C0603C683J5RAC7867 (50V) in a 16V circuit provides additional voltage margin and is functionally acceptable. Physical dimensions remain identical (0603 package).

Q: What is the significance of X7R temperature coefficient?

A: X7R temperature coefficient specifies that capacitance variation remains within ±15% across the operating temperature range of -55°C to 125°C. All substitute parts maintain X7R specification, ensuring stable performance across the full temperature range required for SMPS filtering and general purpose applications.

Q: Why is the original EMK107B7683MA-T marked as obsolete?

A: Taiyo Yuden has discontinued this part number. Active substitute parts from KEMET and KYOCERA AVX provide equivalent or superior functionality and ensure continued availability for production and design requirements.

Q: Are there any physical dimension differences between substitute parts?

A: All substitute parts use the 0603 (1608 Metric) package with identical length (0.063" / 1.60mm) and width (0.031" / 0.80mm). Thickness varies slightly between manufacturers (0.034" to 0.035"), which is within standard PCB assembly tolerances and does not affect compatibility.

Q: Which substitute part offers the best inventory availability?

A: C0603C683K5RAC7867 (KEMET, ±10% 50V) has the highest inventory level at 85571 pcs, followed by C0603C683K3RAC7867 (KEMET, ±10% 25V) at 67264 pcs. For direct replacement with identical specifications, C0603C683M4RAC7867 (KEMET, ±20% 16V) offers 1019 pcs in stock.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message